Rifting and recharge as triggers of the mixed basalt-rhyolite Halaraudur ignimbrite eruption (Krafla, Iceland)

• Published in: Contributions to Mineralogy and Petrology
• Main Authors: Shane M. Rooyakkers, John Stix, Kim Berlo, Daniele Morgavi, Maurizio Petrelli, Monika K. Rusiecka, Simon J. Barker, Bruce L. A. Charlier, David A. Neave, Francesco P. Vetere, Diego Perugini
• Other Authors: Rooyakkers, Shane M., Stix, John, Berlo, Kim, Morgavi, Daniele, Petrelli, Maurizio, Rusiecka, Monika K., Barker, Simon J., Charlier, Bruce L. A., Neave, David A., Vetere, Francesco P., Perugini, Diego
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2022
• Subjects: Krafla; Icelandic volcanism; Magma mixing; Halarauour eruption; Rifting; Iceland
• Online Access: https://hdl.handle.net/11391/1535555; https://doi.org/10.1007/s00410-021-01881-7

We present a petrologic study of the ca. 110 ka Halarauour eruption (7 +/- 6 km(3) magma), associated with collapse of Krafla caldera in northeast Iceland. Whole-rock compositions of juvenile Halarauour products span a continuous range between quartz tholeiite basalt (50.0 wt% SiO2, 5.0 wt% MgO; Mg#...